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TWR-K20D50 run only in debugging mode and not standalone

Question asked by Dominik Fallmann on Jun 26, 2017
Latest reply on Jun 28, 2017 by Dominik Fallmann


I am using a TWR-K20D50 board, I am programming with Segger j-link and use Kinetis Design Studio 3.1.0.


After flashing the program on the controller of the TWR-K20D50 board, the TWR-K20D50 board do not start to run. Pressing the reset-button does not help. If I click step per step through the program at the debug perspective I can see that the board works well, but not standalone. I have connect the board all the time with power at connector J12 "Power/OSJTAG Mini-AB USB Connector".


Do I have set an option to run the board in a standalone mode after flashing with j-link?